Solid electrolyte fuel cell

Details Solid electrolyte fuel cell Solid electrolyte fuel cell

1990-09-06

1992-09-08

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 36, 429 40, H01M 812, H01M 486

Patent

active

051457539

ABSTRACT:
A noble solid electrolyte fuel cell includes a generating layer (5), an interconnector layer (9), and a support layer (10) disposed between the generating and interconnector layers. The interconnector layer comprises a fuel electrode (6), an interconnector material (7) and an oxygen electrode (8). The support layer (10) forms a fuel passage and an oxidizer passage, and supporting rods (15, 102) for gas sealing are disposed at both ends of the support layer. A sealing film (110) is cemented to the contact surfaces of the supporting rods (15, 102) between the generating layer and the interconnector layer, and this sealing film becomes soft or half melted during the operation of the fuel cell. This construction provides improved cell performances due to better sealing of gases even under large temperature differences. The use of finer particles near the surface of the solid electrolyte only is also disclosed.

REFERENCES:
patent: 4510212 (1985-04-01), Faioli
patent: 4666798 (1987-05-01), Herceg
patent: 4799936 (1989-01-01), Riley
patent: 4857420 (1989-08-01), Maricle et al.
patent: 4997726 (1991-03-01), Akiyama et al.

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